▲ Rotor structure optimization design

Santroll optimizes the structural design, eliminates the bearing thrust end component, and integrates it on the motor shaft. The simplified bearing structure makes the axial size shorter and the motor shaft more stable, while reducing the installation difficulty and improving the production efficiency.

▲ Torque sensor integration technology

The torque photoelectric sensor under the traditional process structure can not withstand the huge centrifugal force under the ultra-high speed of the rotor, Santrol bold innovation, the torque sensor is integrated into the motor shaft, greatly reducing the damage of centrifugal force, and through the supporting circuit to obtain accurate torque values, while supporting multi-range output, in order to achieve different accuracy requirements.

▲ Rotor dynamic balance verification technology

The rotor core is composed of multiple iron cores superimposed, a single iron core does independent static balance, and the whole rotor does dynamic balance after assembly, thus greatly improving the stability of the rotor under ultra-high speed operation.

The order is as follows: the motor shaft does the rebalancing independently, the rotor single piece does the static balancing independently, and the rotor assembly does the rebalancing again

▲ Thermoplastic PEEK carbon fiber laser ultra-high preload winding technology

The rotor surface is wrapped by thermoplastic laser ultra-high preload carbon fiber, and the actual measured preload force after forming is maintained at no less than 800Mpa, which effectively ensures the strength of the motor rotor and the stability of high-speed operation, thus greatly improving the upper speed of the rotor.

Santroll self-developed thermoplastic carbon fiber laser ultra-high pretension winding technology. Through the heating of the homogenized spot laser system, the ultra-high preload control of thermoplastic fiber composite belt, the compression and winding of the water-cooled winding press roller and the PLC closed-loop control of the reciprocating servo motor, the ultra-high preload automatic winding and in-situ laser curing of the motor rotor fiber composite belt are realized. This technology leads the industry with its excellent technical performance.

Compared with the traditional carbon fiber winding technology, the thermoplastic carbon fiber laser ultra-high preload winding technology has made significant progress in fiber utilization, preload guarantee, temperature resistance of the winding layer, precision control of the winding layer, and production efficiency (interested parties can contact to discuss).

▲ Carbon fiber winding preload test technology

Santroll self-developed carbon fiber winding preload test equipment, accurately measure the remaining preload after 1200MPa ultra-high preload winding no less than 800Mpa. This technology can effectively guide the process value setting of carbon fiber winding process to ensure the winding effect.

▲ High speed motor rotor circumferential run-out verification technology

Special equipment is used to detect and record the circular runout of the motor rotor. After high-speed operation for a period of time, the circular runout of the high-speed motor rotor is tested again to compare the difference values before and after operation, and the rotor stability is enhanced by optimization design accordingly, so that the circular runout before and after operation is the same.

▲ High speed motor bearing scheme selection is diversified

Santroll can match the corresponding bearing scheme according to different requirements.

Magnetic bearings completely separate the rotor and the stator, there is no direct contact between them, directly avoid wear, the theoretical life is close to infinite, and the use effect is very good under the condition of small load fluctuation and light load; The oil float bearing can withstand more load fluctuations and heavy loads, and the use effect is stable and reliable.